<template>
  <el-dropdown
    class='international'
    trigger='click'
    @command='handleSetLanguage'
  >
    <div>
      <el-tooltip content='国际化' effect='effect'>
        <svg-icon id="guide-lang" icon='language'></svg-icon>
      </el-tooltip>
    </div>
    <template #dropdown>
      <el-dropdown-menu>
        <el-dropdown-item
          :disabled='language === "zh"'
          command='zh'
        >中文</el-dropdown-item>
        <el-dropdown-item
          :disabled='language === "en"'
          command='en'
        >English</el-dropdown-item>
      </el-dropdown-menu>
    </template>
  </el-dropdown>
</template>

<script setup>
import { useStore } from 'vuex'
import { computed, defineProps } from 'vue'
import { useI18n } from 'vue-i18n'
import { ElMessage } from 'element-plus'

defineProps({
  effect: {
    type: String,
    default: 'dark',
    validator: function (val) {
      return ['dark', 'light'].indexOf(val) !== -1
    }
  }
})

const store = useStore()
const language = computed(() => store.getters.language)

// 切换语言的方法
const i18n = useI18n()
const handleSetLanguage = lang => {
  // 切换 i18n 的 locale
  i18n.locale.value = lang
  // 修改 vuex 中保存的 language
  store.commit('app/setLanguage', lang)
  // 提示
  ElMessage.success(i18n.t('msg.toast.switchLangSuccess'))
}
</script>

<style lang='scss' scoped>

</style>
